Followed by a discussion, with case study examples, on three aspects of the impact of corrosion. on society: 1 direct effects leading to injury or death, 2 environmental contamination. Corrosion cells can be classified into two groups, based on the effective area of ​​the anodic and cathodic sites in size and dimension: a local cell element microcell with effective electrode areas of a fraction of a square millimeter , for example a second phase serves as a possible solution. effective cathode site such as inclusion impurities for Zn, 1. IntroductionPolyaniline PANI is known as the only synthetic metal stable in air 1, 2. PANI can be obtained by chemical synthesis 3 or electrochemical 1, 4 in the form powder or film. It is known that the undoped state of PANI insulator is soluble in common organic solvents, but the doped conductive form of PANI is insoluble. Atmospheric corrosion of coated samples can be examined by salt spray or fog testing. Here, the NaCl solution is atomized in a temperature-adjusted chamber F. The time during which the samples can resist corrosion is the criterion used to understand the durability of the tested samples. The effects of corrosion on the economy are resource depletion, property devaluation, as well as environmental deterioration. automobiles, ships and planes. 4. Resource depletion. One of the effects of corrosion on the environment is resource depletion. Obviously, corrosion degrades and destroys metal products, which,